What percentage of blood consist of iron?

Question

What percentage of blood consist of iron?

Answer 1

I have never seen iron reported as a 'percentage'.  It would be too small and confusing a figure to work with.

There are three iron tests: serum iron, total iron binding capacity, and ferritin iron.

The normal ranges for each, respectively, are:

1) 20-150 nanograms/millilitre (both men and women)

2) 250-450 ng/mL (both men and women)

3) 20-300 ng/mL (men) and 20-120 ng/mL (women)